
BGC GRIP
Self-anchoring bentonite geocomposite
Bentonite geocomposite for the active waterproofing of underground structures: granular sodium bentonite enclosed between woven and non-woven geotextiles. Its self-anchoring structure gives outstanding mechanical adhesion to the concrete.
CERTIFICATIONS AND STANDARDS
probar@probaritalia.com · +39 02 97130588
Features and benefits
FEATURES
- Self-sealing
- Water-swellable
- Mechanical anchoring
- Natural sodium bentonite
- Double geotextile
BENEFITS
- Active waterproofing
- Mechanical adhesion to the concrete
Technical data
- BGC GG (large)
- 2.5×20 m — 270 kg
- BGC GP (small)
- 1.2×5 m — 32 kg
Data as declared in the Probar Italia 2026 catalogue. For complete and up-to-date values, the manufacturer’s data sheet prevails.
When to use BGC GRIP
Applications listed in the catalogue
How it works
Granular sodium bentonite is enclosed between a woven and a non-woven geotextile. On contact with water it hydrates and swells; confined between the structure and the ground it forms a waterproof layer that also seals small cracks. The self-anchoring structure bonds mechanically to the concrete poured against the sheet. Minimum overlap 10 cm.

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